The Nerds over at ESPN seem to think this means Rojon Rondo will return on Friday:
Rondo's tweet referencing 29,233,380 seconds equates to a little more than 338 days, which would be the duration between his ACL surgery on Feb. 13, 2013, and a potential return on Jan. 17, 2014. Rondo appeared to have even calculated the differential in time between his surgery and tipoff Friday. (The surgery would have been at 11:07 a.m., figuring in Friday's 7:30 p.m. start.)
Either that or he is just fucking with everyone.